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Cancun in September: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Cancun in September will be like? Take a look at our weather guide for Cancun, based on historical data.
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September

Weather in Cancun in September 2024

OK Weather
Warm
🌧️
Rainy
If you plan to visit Cancun in September, the weather is typically alright, with an average high temperature of +84°F during the day and approximately 1 sunny days. Expect some rainy, though, as there are typically 18 rainy days in the month and around 172 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • September is usually the hottest month of the year in Cancun;

Average weather

☀️
+84°F
Avg. max. temperature
+72°F
Min.
+91°F
Max.
172 mm
Total precipitation
82%
Avg. humidity
1 m/s
Avg. wind
1 ☀️
Sunny Days
11 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: Cancun has OK weather in September.

Average temperature in Cancun in September

Here are the expected maximum, average and minimum temperatures in Cancun for September based on the historical data.
Last Year
Historical Data

Going from a maximum of +86°F during the day to a minimum of +77°F during the night, the temperature in September averages around +84°F.

The average maximum temperature goes up 20% by the end of the month, compared with the beginning of the month, from +82°F to +84°F.

Is Cancun warm or cold in September?

Cancun is typically warm in September.

Maximum temperatures go up compared to the previous month from +84°F to +84°F. The minimum temperature also goes up from +79°F to +79°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

September is the hottest month in Cancun, here is the comparison with other months:

Climate in Cancun in September

Cancun weather looks like this, on average, in September and the surrounding months.
AugustSeptemberOctober
Avg. temperature
+84°F+84°F+82°F
Min. temperature
+72°F+72°F+59°F
Max. temperature
+97°F+91°F+91°F
Rainfall
121 mm172 mm162 mm
Wind
2 m/s1 m/s2 m/s
Humidity
80%82%82%
Air pressure
1013 HPa1011 HPa1012 HPa
Sunny days
112
Cloudy days
161115
Rainy days
141814
Snowy days
000

September weather is still as ok as in August. The temperature levels stay the same in the area of +84°F for average maximum temperature during the day. Prepare for more rain. Average rainfall goes from 121 mm to 172 mm. Humidity rises from 80% to 82%. Winds are calmer in comparison to August, going down from 2 m/s to 1 m/s on average. The amount of sunny days stay about the same, averaging 1 sunny days during the month.

October brings much the same weather, it remains ok.

Wind

Wind speed in Cancun in September based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 4 m/s which is a light breeze; barely moving the tree leaves.

The average wind speed in Cancun is gradually increasing during September, going from 3 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during September in Cancun based on historical data.
Last Year
Historical Data
Total precipitation in September is about 137 mm, with a 87% chance of rain on a typical day. The maximum amount of rainfall per day is around 39 mm, which is moderate rain. September is a pretty wet month with over 26 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Cancun, here is a comparison with other months, total mm:
Cancun wettest month is September, where a typical day has a 60% chance of precipitation and 172 mm of rainfall per day. March, on the other hand, is the driest month with a mere 10% chance of precipitation and 32 mm of rainfall per day.

How was the weather last September in Cancun?

This is the weather in Cancun in September 2023:
1 September
🌧️
+83°F
2 September
☁️
+85°F
3 September
☁️
+85°F
4 September
☁️
+86°F
5 September
☁️
+85°F
6 September
☁️
+86°F
7 September
☁️
+85°F
8 September
☀️
+86°F
9 September
🌧️
+81°F
10 September
🌧️
+83°F
11 September
🌧️
+84°F
12 September
☁️
+86°F
13 September
☁️
+84°F
14 September
☁️
+83°F
15 September
🌧️
+83°F
16 September
🌧️
+85°F
17 September
☁️
+86°F
18 September
☁️
+85°F
19 September
☁️
+85°F
20 September
🌧️
+83°F
21 September
☁️
+84°F
22 September
☀️
+84°F
23 September
☁️
+85°F
24 September
☀️
+85°F
25 September
☁️
+85°F
26 September
☁️
+82°F
27 September
🌧️
+84°F
28 September
☁️
+84°F
29 September
☁️
+83°F
30 September
☁️
+84°F
In September 2023 Cancun had 3 sunny days, 19 cloudy days, and 8 rainy days. The average maximum temperature was +84°F, with an absolute maximum of +86°F and a minimum of +81°F. The average humidity was 85%, with a maximum of 100% and a minimum of 54%. The average wind speed was 2 m/s, with a maximum of 10 m/s and a minimum of 0 m/s.
Are you planning a trip in September?

Climate Change Over the Years

This is how Cancun climate has changed over the last 43 years.

The climate in Cancun in September has not changed that much over the last 43 years.

The average temperature was the lowest in 1984 (+84°F) and the highest in 2005 (+93°F). The driest year was 1996 with only 64 mm of rainfall, and the wettest year was 2013 with 468 mm.

FAQ

Frequently asked questions about the weather in Cancun in September:

Is September a good time to visit Cancun?

It’s always a good time to visit Cancun, but the weather is changeable in September, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in Cancun in September?

September is warm in Cancun. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Cancun rainy in September?

Cancun is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in Cancun in September?

Usually, it’s not very sunny in Cancun in September, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Mexico

Check out the weather for other cities in Mexico.

Monthly weather in Cancun

Source of the data

For this page, we’ve looked at the typical weather in Cancun, based on historical hourly weather data from January 1, 1979, to December 31, 2022.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.